class_docstr: Abstract class for models.
  
  Implements default session checkpoint restore methods.
docstr: Constructs a BaseModel.
docstr_tok: ["Constructs","a","BaseModel","."]
code: def __init__(self):
      """Constructs a BaseModel."""
      self._session = None
  
file_path: magenta/magenta/models/shared/model.py
imports: import abc
  import tensorflow.compat.v1
label_desc: Use image node_id 1 to create a new BaseModel object from inherited base classes: object with example: obj = BaseModel()